Uploaded January 2024 | Updated September 2026, 4 hours ago

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I have a bunch of old circuit boards lying around, full of transistors and other stuff, and I thought it would be fun to look at the inside of some of those components.

I grabbed my metallurgical microscope together with a mirrorless camera and recorded some footage at different magnifications.

I added scale bars so you can see how tiny those features are on this transistor.

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More hi-resolution pictures:
https://curiousscientist.tech/silicon-dies